The Aruch HaShulchan says that “Because their minds are ??, and they find in the Torah meaningless matters, because their minds are inadequate (for Torah study, even though they get a reward). But like most poskim, the Aruch HaShulchan rules that one’s daughter can learn Torah Shebichsav.
Maybe that was true when the Aruch HaShulchan stated it, but girls in this day and ageare Yeshivah educated LIKE BOYS from the earliest ages on, and I know a heck of a lot of girls who are WAY more learned in Torah than many boys. I know girls who are top notch in fields of study that in secular terms were always the male dominion for centuries. They, too, are way more educated and intelligent than their male counterparts. Hashem was not the one who made the statement about nashim kalos datan, was He? Women have bina yesaira, and that is as if not more valuable than chochma. One can be a really stupid person, in spite of all of his Torah learning. Making foolish generalized statements about women today, only reinforces that to me. Not all men are learned, not all women can learn Torah in depth. But those who can, do, and those who can’t, won’t.